Home / 393,378.03-590,051.79-112,895.28

Finding the Fourth Proportional to 393,378.03, 590,051.79 and 112,895.28

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Solution

The fourth proportional to 393,378.03, 590,051.79 and 112,895.28 is: 169,338.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,378.03 : 590,051.79 = 112,895.28 : x
  2. Step 2: Convert to fraction form
    393,378.03/590,051.79 = 112,895.28/x
  3. Step 3: Cross multiply
    393,378.03x = 590,051.79 × 112,895.28
  4. Step 4: Simplify right side
    393,378.03x = 66,614,062,046.55
  5. Step 5: Solve for x
    x = 66,614,062,046.55/393,378.03
  6. Step 6: Final answer
    x = 169,338.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.